Weegy: Rule 1) The Derivative of any constant is always zero. You can know constants because they do not change with any variable. [ So if C never changes no matter what x (or any other variable) does, for example, then C is a constant and
dC
= C'(x) = 0
dx
Examples:
The number, 14, doesn't change no matter what else varies. So the derivative of 14 is zero.
The value of p doesn't change no matter what else changes, so the derivative of p is always zero.
If a circle of fixed size has radius, r, then r is constant and the derivative of r is zero. ] User: how much is x? User: x*(x-1)=42, how much is x? Weegy: 2x-1x = 42
x=42
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